How to center the text in a JLabel?

问题

despite many tries I can't get the result that I would like to see - text centered within the JLabel and the JLabel somewhat centered in the BorderLayout. I said "somewhat" because there should be also another label "status" in the bottom-right corner of the window. Here the bit of code responsible for that:

setLayout(new BorderLayout());
JPanel area = new JPanel();
JLabel text = new JLabel(
        "<html>In early March, the city of Topeka," +
        " Kansas,<br>temporarily changed its name to Google..." +
        "<br><br>...in an attempt to capture a spot<br>" +
        "in Google's new broadband/fiber-optics project." +
        "<br><br><br>source: http://en.wikipedia.org/wiki/Google_server" +
        "#Oil_Tanker_Data_Center</html>", SwingConstants.CENTER);
text.setVerticalAlignment(SwingConstants.CENTER);
JLabel status = new JLabel("status", SwingConstants.SOUTH_EAST);
status.setVerticalAlignment(SwingConstants.CENTER);
Font font = new Font("SansSerif", Font.BOLD, 30);
text.setFont(font);
area.setBackground(Color.darkGray);
text.setForeground(Color.green);
// text.setAlignmentX(CENTER_ALIGNMENT);
// text.setAlignmentY(CENTER_ALIGNMENT);
// text.setHorizontalAlignment(JLabel.CENTER);
// text.setVerticalAlignment(JLabel.CENTER);
Font font2 = new Font("SansSerif", Font.BOLD, 20);
status.setFont(font2);
status.setForeground(Color.green);      
area.add(text, BorderLayout.CENTER);        
area.add(status, BorderLayout.EAST);
this.add(area);

Thanks for any help provided.

回答1:

String text = "In early March, the city of Topeka, Kansas," + "<br>" +
              "temporarily changed its name to Google..." + "<br>" + "<br>" +
              "...in an attempt to capture a spot" + "<br>" +
              "in Google's new broadband/fiber-optics project." + "<br>" + "<br>" +"<br>" +
              "source: http://en.wikipedia.org/wiki/Google_server#Oil_Tanker_Data_Center";
JLabel label = new JLabel("<html><div style='text-align: center;'>" + text + "</div></html>");

回答2:

The following constructor, JLabel(String, int), allow you to specify the horizontal alignment of the label.

JLabel label = new JLabel("The Label", SwingConstants.CENTER);

回答3:

myLabel.setHorizontalAlignment(SwingConstants.CENTER);
myLabel.setVerticalAlignment(SwingConstants.CENTER);

If you cannot reconstruct the label for some reason, this is how you edit these properties of a pre-existent JLabel.

来源：https://stackoverflow.com/questions/6810581/how-to-center-the-text-in-a-jlabel

标签

java

swing

user-interface

jlabel

htmltext